Free
COBALT DRILL BIT SET 25 PIECE 1-13MM X 0.5 IN METAL CASE
- Stock: In Stock
- Brand: ALPEN
- Model: ALP KM25COB
- Weight: 1.52kg
- Dimensions: 166.00cm x 176.00cm x 176.00cm
- SKU: ALP KM25COB
- UPC: 9002740100096
Products Sold: 0
Product Views: 26
R 4,441.82
Ex Tax: R 3,862.45
25 Piece Cobalt drill bit set
Alpen HSS-ECo Cobalt KM25 Jobber drill set in
metal cassette 19 pcs. ø 1.0-13.0
mm. Drill bit size increments - 0,5mm.
Range
of application:
5% cobalt-alloyed jobber drills with high heat-resistance for drilling steels with tensile strength over 800 N/mm², especially suitable for high alloyed steels, bearing-steels, hot/cold-rolled steel. Ideal for stainless steel.
For drilling into:
Art-No. 00 001002251 00 |
| Cooling recommendations for Cobalt drills | |||
| Material | Hardness | Coolant | |
 |
Steel | < 400 N/mm2 | Emulsion |
|
|
Steel | < 850 N/mm2 | Emulsion |
|
|
Steel | < 1.100 N/mm2 | Emulsion |
|
|
Steel | < 1.300 N/mm2 | Emulsion or Oil |
 |
Stainless Steel | Emulsion | |
 |
Cast iron | Dry / Compressed Air / Emulsion | |
 |
Titanium | Oil | |
 |
Copper and Brass | Oil | |
 |
Aluminium | Emulsion | |
 |
Composites and Plastics | Emulsion / Water / Air | |
Sharpening angles and Point shapes
Drill bits are not all the same. Special materials and the different applications need different cutting angles and point shapes. Refer to the table below to learn more about point shapes and the lip angles.
 |
 |
 |
 |
Relieved cone,
|
Split Point AC,
|
Split Point C,
|
Centering Point-Shape E, 180° |
| Universal point-shape for a lot of drilling applications in steel and iron, non ferritic-materials, plastics and other materials. | Point-shape with increased performance and very good centering. This point shape is being used for all industrial drill bits. |
Special point-shape for stainless steels and special materials. |
Special point-shape for spot weld drills. |
| Specifications | ||
| Drill diameter | Qty | Sample |
| HSS-ECo Jobber drill DIN 338 RN
Ø 1,0 mm - 13 mm |
1 ea Size |
 |
| Increments | 0,5 mm | |
| Specification | DIN 338 | |
 |
||
